Phase Monitoring Relays:

29 Products Found

Element14 offers phase monitoring relays that protect three-phase systems from phase loss, phase reversal and imbalance. These relays are designed to prevent motor damage and ensure stable operation.

Phase monitoring relays measure phase sequence, phase loss and voltage balance in three-phase systems. If any discrepancy is detected, the relay disconnects the load to prevent motor failure.

Key Features:

  • Phase loss and reversal protection for motors and equipment.
  • Adjustable voltage range for versatile use.
  • Compact design for easy installation in control panels.

Applications:

  • Industrial Motors – Ensure proper phase alignment and prevent damage.
  • HVAC Systems – Maintain stable operation in multi-phase compressors.
  • Renewable Energy – Monitor phase balance in solar and wind systems.
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ComparePrice ForQuantity
2455513

RoHS

Each
1+
CNY766.340
(CNY865.9642)
5+
CNY670.540
(CNY757.7102)
10+
CNY574.550
(CNY649.2415)
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
22VA
-
-
2835320

RoHS

Each
1+
CNY975.070
(CNY1,101.8291)
Min: 1 / Mult: 1
Zelio RM22UA
DPDT
8A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
15VA
380V
480V
3111268

RoHS

Each
1+
CNY580.890
(CNY656.4057)
5+
CNY508.280
(CNY574.3564)
10+
CNY435.490
(CNY492.1037)
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
-
250V
480VAC
-
3 Phase
15VA
183VAC
528VAC
1895998

RoHS

Each
1+
CNY611.180
(CNY690.6334)
5+
CNY598.960
(CNY676.8248)
10+
CNY586.740
(CNY663.0162)
Min: 1 / Mult: 1
CM-PFE
SPDT
4A
DIN Rail
Screw
-
250V
440VAC
-
3 Phase
15VA
208VAC
440VAC
3111267

RoHS

Each
1+
CNY700.000
(CNY791.000)
5+
CNY686.000
(CNY775.180)
10+
CNY672.000
(CNY759.360)
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
-
250V
576VAC
-
3 Phase
15VA
380V
480V
3223352

RoHS

Each
1+
CNY1,389.020
(CNY1,569.5926)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
400VAC
-
3 Phase
-
360VAC
440VAC
4259621
Each
1+
CNY841.260
(CNY950.6238)
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
250V
230VAC
-
3 Phase
8VA
170VAC
290VAC
4259625
Each
1+
CNY1,392.140
(CNY1,573.1182)
Min: 1 / Mult: 1
-
SPDT
10A
Socket
Plug In
-
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
3111269

RoHS

Each
1+
CNY1,116.880
(CNY1,262.0744)
5+
CNY1,094.550
(CNY1,236.8415)
10+
CNY1,072.210
(CNY1,211.5973)
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
-
250V
240VAC
-
3 Phase
10VA
200VAC
240VAC
9514430

RoHS

Each
1+
CNY5,156.070
(CNY5,826.3591)
Min: 1 / Mult: 1
BD 9080
DPDT
-
DIN Rail
Screw
-
230VAC
400VAC
-
3 Phase
2.4VA
-
-
9515399

RoHS

Each
1+
CNY1,033.840
(CNY1,168.2392)
5+
CNY1,029.300
(CNY1,163.109)
10+
CNY944.510
(CNY1,067.2963)
Min: 1 / Mult: 1
MK 9056
DPDT
-
DIN Rail
Screw
-
230VAC
500VAC
-
3 Phase
-
-
-
4259624
Each
1+
CNY1,514.330
(CNY1,711.1929)
Min: 1 / Mult: 1
-
SPDT
10A
Socket
Plug In
-
240VAC
-
-
3 Phase
90VA
200VAC
430VAC
2811545

RoHS

Each
1+
CNY395.300
(CNY446.689)
5+
CNY387.400
(CNY437.762)
10+
CNY379.490
(CNY428.8237)
20+
CNY371.590
(CNY419.8967)
Min: 1 / Mult: 1
SM 301 Series
SPDT
5A
DIN Rail
Screw
250V
250V
415VAC
28V
3 Phase
15VA
-
415VAC
1895997

RoHS

Each
1+
CNY550.410
(CNY621.9633)
5+
CNY539.410
(CNY609.5333)
10+
CNY528.400
(CNY597.092)
Min: 1 / Mult: 1
-
SPST-NO
4A
DIN Rail
Screw
-
250V
130VAC
-
1 Phase
-
110VAC
130VAC
3223348

RoHS

Each
1+
CNY1,927.740
(CNY2,178.3462)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
2813563
Each
1+
CNY988.410
(CNY1,116.9033)
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
-
240VAC
480VAC
-
3 Phase
6W
190VAC
480V
3223357

RoHS

Each
1+
CNY2,167.230
(CNY2,448.9699)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
280VAC
-
3 Phase
-
180VAC
280VAC
3223356

RoHS

Each
1+
CNY2,346.320
(CNY2,651.3416)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
1896002

RoHS

Each
1+
CNY667.930
(CNY754.7609)
5+
CNY654.580
(CNY739.6754)
10+
CNY641.220
(CNY724.5786)
Min: 1 / Mult: 1
CM-PBE
SPST-NO
-
DIN Rail
Screw
-
-
440VAC
-
3 Phase
-
220VAC
440VAC
1895999

RoHS

Each
1+
CNY690.490
(CNY780.2537)
5+
CNY676.690
(CNY764.6597)
10+
CNY662.880
(CNY749.0544)
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
Screw
-
300VAC
460VAC
-
3 Phase
-
185VAC
460VAC
2813562
Each
1+
CNY1,097.000
(CNY1,239.610)
Min: 1 / Mult: 1
460
SPDT
10A
DIN Rail
Screw
-
240VAC
480VAC
-
3 Phase
6W
190VAC
480V
3223355

RoHS

Each
1+
CNY2,064.490
(CNY2,332.8737)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
170VAC
-
3 Phase
-
90VAC
170VAC
3223349

RoHS

Each
1+
CNY880.880
(CNY995.3944)
5+
CNY863.270
(CNY975.4951)
10+
CNY845.650
(CNY955.5845)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
200VAC
500VAC
3223353

RoHS

Each
1+
CNY1,966.980
(CNY2,222.6874)
Min: 1 / Mult: 1
CM
DPDT
4A
DIN Rail
Screwless
-
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
9515046

RoHS

Each
1+
CNY684.050
(CNY772.9765)
5+
CNY681.050
(CNY769.5865)
10+
CNY624.940
(CNY706.1822)
Min: 1 / Mult: 1
IK 9179
SPST-NC
-
DIN Rail
Screw
-
230VAC
400VAC
-
3 Phase
-
-
-
1-25 of 29 items
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